程序代码：

#include <iostream>
#include <string>
using namespace std;
class Student
{
public:
protected:
    int num;
    string name;
    char sex;
};
class Student1:protected Student
{
public:
    void get_value1();
    void display1();
private:
    int age;
    string addr;
};
void  get_value1()
{a
    cin>>num>>name>>sex;
    cin>>age>>addr;
}
void Student1::dispaly1()
{
    cout<<"name"<<name<<endl;
    cout<<"num"<<num<<endl;
    cout<<"sex"<<sex<<endl;
    cout<<"age"<<age<<endl;
    cout<<"address"<<addr<<endl;
}
int main()
{
    Student1 stud1;
    stud1.get_value1();
    stud1.display1();
    return 0;
}